Propeller.



i boats and the@ UNITED STATES JOSEPH IH. SMITH, OF RINGSTOL-lr STATION, NGVA SCOTIA.,

PROPELLEB,

Specification of Letters Patent.

PKTENT'oFneE.

Patented Fein 28, 1,911.

lpplication led July 2, 1910. Serial No. 579,06. l Y

v. 4 l l .To ad whom @t may confiera:

nal center of each housing 5 a casing 7 .0

Be it `known that'I, JOSEPH H. SMITH, a jects therein, said easing extending from the subject of the King;r of Great Britain', resid* ing at Kingston Statief', in the Province of Nova Scotia and Dolnil'lion of Canada, have invented Certain new a id useful Improve menta in Propellers, of-rhioh the following.

is a spec-intuition, refe@ ce being had therein to the acroinl'iany'ng drawing.

'This invention relates.to-thetenlijeet of incipal ohjeet of the saine ia lo provide a novel hull construction and propellers therefor by means of which vthe boatinay be rapidly propelled. with the .inininnnn of power.

In carrying out the oli-jects of the invention generally Stated above it will he understoo'rh' of course` that the eaential features thereof are necessarily sasceptibleof changes in details and structural arrangements, one preferred and iiractical embodiment of whiohis shown in theaooompanying draw ings, wherein :e

'Figure l a viewin Side elevation boat eonstrncted in aocordanoe with this `inventiorn lFig. 2 is a transverse vertical tionallview taken on the line Q--2, Fig. l. Fig. 35e a. fragmentary.vertical Sectional View :flowing the manner of operating .the Propellers. Fig'. LL is a View in rear elevation of the stern of the boat. Fig. i is e frag inentanv eem'ional View of the how of the boat showing the entrance to one of the propeller housings.

. l'eferring to `said. accompanying drawings by nlnnerals, 'l `deeigmiteathe hull of the improved' boat which is provided with [he -nslia'l keel 2, andV a lower (leek 3 which the bilge. d Al' each side of the bow, the hall is provided with a" rearwardly extending, tp-

` wardly inclined 0].iening 4, `which deerea'ses in size from the front end to the rear end and communicates at the rear en .d with a tubularP housingr` that extends longitudinal. of the, hull. The forward ends of the .honsin-gs 5 are higher than the rear ende,

and Said rear ends eomnmnicate'with open- `lings 6 formed thron 'h the -hull adjacentt-he st ernqaarter. A jacent the-ltnlgitudihousing t0 the doek 3.

shaft 8 projects longitudinally through each housing 5 the forward ends, of said ahalts being jonrnaled in hanger bearings, il that depend from decl: 3, and the rear ends of said Shafts projecting beyond Stern openinge 3 and being jonrnaled .in hanger hearn ni; l() that depend troi'noaoh ffslern quarter. an y'l he shane o. poes throng5 the oasings 7 and on their portions 'afithnifsaid casings, the ahaiia are provided V th a polli-.y li. which has a holt Connection le with the r gine (not. Shown). Forward and ai' of Said. casina/is e@ 7, the shaft-:s 8 a provi with Screws it it' will 'he seen from the :foregjgoing that. the forward niovenir: of t-l'le boat. 'will cause Water to enter hoof o'ieninge 'i and he die `charged through the stern openings C, by the rotation of the prop-fillers. It will alzo he seen that the how openino--q `being upwardly inclined and tapering toward the rear endeE 'will canse the watt-r to he de to the housing ander press-nre, and thc l will force the water to and tlirmlgn the openings 'with great force.

As Clearly elio their h onsing. are l deelt; ao that tney ocrapy :spare adjacent the hilge, tin-Toby memoria., ing;v in space.

TVhat I claim ae my invention A boat com rising a hall provided with upwardly inclined,longitudinally 'tapering -r'2f bow openings, Said hull being provided with stern openings that are'in a loa-er plane Y than the inner endel ol the how' openinge; cylindrical propeller housings connect-'i1' l signature in presence of two Witneaees.

JOSEPH H, SMTH.

Witnesses:

WL L. lv'l. 

